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CISA Practice Question: A multinational corporation is designing its…
A multinational corporation is designing its disaster recovery strategy to meet a recovery point objective (RPO) of 15 minutes for its critical database. Which replication method is MOST appropriate?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Synchronous replication with write-back caching
Synchronous replication with write-back caching provides near-zero data loss while managing performance impact. Asynchronous replication may have higher latency, daily backups exceed RPO, and hourly snapshots are insufficient.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Asynchronous replication over WAN
Why it's wrong here
Asynchronous replication may not guarantee data loss under 15 minutes due to buffering.
- ✗
Daily incremental backups to tape
Why it's wrong here
Daily backups cannot meet a 15-minute RPO.
- ✓
Synchronous replication with write-back caching
Why this is correct
Correct: Synchronous replication ensures transactions are committed at both sites, meeting RPO.
- ✗
Periodic snapshot every hour
Why it's wrong here
Snapshots every hour exceed the 15-minute RPO.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISA exam.